German bkk gummiteile seals, bkk gummiteile models, bkk gummiteile prices

bkk gummiteile seals can be divided into two main categories: static seals and dynamic seals. Static seals mainly include three types: gasket seals, sealant seals, and direct contact seals. According to working pressure, static seals can be further divided into medium-low pressure static seals and high-pressure static seals. Medium-low pressure static seals commonly use gasket seals made of softer materials with wider widths, while high-pressure static seals use metal gaskets made of harder materials with very narrow contact widths. Dynamic seals can be divided into two basic types: rotary seals and reciprocating seals. Based on whether the seal contacts the components moving relative to it, they can be divided into contact seals and non-contact seals; based on the seal and contact position, they can be divided into circumferential seals and face seals, with face seals also known as mechanical seals. Centrifugal seals and spiral seals in dynamic sealing achieve sealing by imparting kinetic energy to the medium during machine operation, hence they are sometimes called power seals.

bkk gummiteile Seal Classification

Oil seals are generally divided into single-piece types and assembled types. The assembled type allows free combination of the cage and lip material, generally used for special oil seals. Oil seals can be categorized into various forms and names based on their sealing function, characteristics, structural type, operating state, and sealing mechanism. However, conventionally, rotating shaft lip seals are referred to as oil seals, while seals used for static sealing and dynamic sealing (generally reciprocating motion) are called seals. The representative form of an oil seal is the TC oil seal, which is a double-lip oil seal with a self-tightening spring fully encapsulated in rubber. The term 'oil seal' commonly refers to this type of tc caged oil seal.

bkk gummiteile Seal Materials

Common materials for oil seals include: Nitrile Rubber, Fluoroelastomer, Silicone Rubber, Acrylate Rubber, Polyurethane, Polytetrafluoroethylene, etc. 1) Nitrile Rubber (NBR): It has good heat and wear resistance, resists various lubricating oils, greases, and oil-gas mixtures. Applicable temperature range: -30 to 120 degrees Celsius. However, it cannot be used in phosphate ester hydraulic fluids or gear oils containing extreme pressure additives. It performs stably in gasoline and mineral oils with low aniline points. 2) Polyacrylate Rubber (ACM): Superior oil and heat resistance, wear resistance, ozone resistance, and UV radiation resistance. Especially resistant to lubricating oils, gear oils, motor oils, engine oils, and petroleum-based hydraulic fluids containing extreme pressure agents. Suitable for working temperatures in the range of -30 to 150 degrees Celsius. 3) Fluoroelastomer: Resistant to aging, heat, and oil. Suitable for almost all lubricating oils, fuel oils, and gasoline. It does not harden easily in oils containing extreme pressure additives. However, it has poor cold resistance and high-temperature wear resistance, and significant permanent compression set. Suitable for temperatures from -20 to 250 degrees Celsius. 4) Silicone Rubber: Outstanding high and low-temperature resistance. Can be used long-term at 150 degrees Celsius without performance change; can be used continuously at 200 for 10000h. Maintains its unique elasticity, ozone resistance, and weather resistance in the working temperature range of -70 to 260. 5) Polytetrafluoroethylene: Outstanding chemical stability, thermal stability, friction reduction, and self-lubrication. Its decomposition temperature is above 400. Therefore, it can work normally in the temperature range of -200 to 300 degrees Celsius. Except for free fluorine and alkali metals, it has excellent corrosion resistance to chemicals, solvents, hydroxides, and acids. Nitrile rubber and fluoroelastomer are widely used oil seal materials. The former is low-cost, but the latter offers significant improvements in temperature resistance and sealing performance, though at a higher cost. It still retains some common disadvantages of ordinary rubber materials, such as poor wear resistance, short service life, and high sensitivity to shaft eccentricity, making leakage relatively common. PTFE oil seals are high-tech products and represent the future direction of oil seal development [2]. When selecting oil seal materials, one must consider the material's compatibility with the working medium, adaptability to the working temperature range, and the lip's ability to follow the rotating shaft at high speeds. Generally, the lip temperature of an oil seal during operation is 20 to 50℃ higher than the working medium temperature, which should be noted when selecting materials. The operating range of an oil seal depends on the material used: Nitrile Rubber (NBR) is -40 to 120℃, Acrylate Rubber (ACM) is -30 to 180℃, and Fluoroelastomer (FPM) is -25 to 300℃.

bkk gummiteile Seal Functions and Applications

Engine: Crankshaft - front and rear crankshaft oil seals; Valve - valve oil seals (engine repair kit o O-rings) (distributor oil seal, water pump oil seal, balance shaft oil seal, oil pump oil seal...); Camshaft - camshaft oil seal; Transmission: Transmission - front and rear transmission oil seals; Shift lever oil seal (transmission repair kit o O-rings) (Transfer case - front and rear transfer case oil seals); Rear Axle: Half-shaft - rear half-shaft oil seal; Differential - (front/rear) pinion oil seal; Rear wheel oil seal; Front wheel oil seal; Steering gear oil seal (steering gear repair kit o O-rings); Power steering booster oil seal (front half-shaft oil seal). Oil seals are required wherever there is liquid lubricating oil inside a rotating housing that connects to the exterior. Some are made of rubber, some of metal, but most are steel-cased rubber, such as rear crankshaft oil seals, front and rear transmission oil seals, left and right half-shaft oil seals, front differential oil seals, and air compressor crankshaft oil seals.

Weidou Intelligent Technology specializes in selling German bkk gummiteile seals, bkk gummiteile sealing rings, bkk gummiteile sealing strips, bkk gummiteile pipe seals, bkk gummiteile cable seals, bkk gummiteile rubber seals, bkk gummiteile mechanical seals, bkk gummiteile sealing gaskets, bkk gummiteile oil seals, bkk gummiteile shaft seals, bkk gummiteile metal seals, bkk gummiteile high-pressure seals, bkk gummiteile spiral seals, bkk gummiteile centrifugal seals, bkk gummiteile sealing rings. bkk gummiteile original imports from Germany. Welcome inquiries and orders from users.